Home / 916,511.94-1,264,879.80-508,616.55

Finding the Fourth Proportional to 916,511.94, 1,264,879.80 and 508,616.55

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Solution

The fourth proportional to 916,511.94, 1,264,879.80 and 508,616.55 is: 701,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,511.94 : 1,264,879.80 = 508,616.55 : x
  2. Step 2: Convert to fraction form
    916,511.94/1,264,879.80 = 508,616.55/x
  3. Step 3: Cross multiply
    916,511.94x = 1,264,879.80 × 508,616.55
  4. Step 4: Simplify right side
    916,511.94x = 643,338,800,040.69
  5. Step 5: Solve for x
    x = 643,338,800,040.69/916,511.94
  6. Step 6: Final answer
    x = 701,942.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.